Cylinder, particularly for explosion-engines.



M. BIRKIGT.

PARTICULARLY FOR EXPLOSIDN ENGINES. APPLICATION 'FILED 1uNE21. 1915.-

CYLINDER,

Patented .1 uly 17, 1917.

a sHEETs-sHEET1L IVI. BIRKIGT. CYLINDER, PANTlcuL/NRLY FOR ExPLosloN ENGINES.

APFLICAATION FILED JUNE 2l, 1915.

Patented July 17, 1917.

'3 SHEETS-SHEET 2.

NNNNNNNNNN IVI. BIH/MGI. CYLINDER, PARTICULARLY FOR EXPLOSION ENGINES. APPLICATION FILED IuNE 2|. 1915.

Patented July 17, 1917.

3 SHEETS-SHEET 3.

I af I y, A A" ,j H "i l@ nene emmer, or ners-concretas, rennen. l, I omarmen, ranrrounannv .non aantasten-Enormes.

"SlSgggds y Speccation of Lettera Patent.- Waugh-wd July 1% 19170- i i Application tiled ylune 21, 1915, Serial No. 355,332. A To all wlwm t may concern'. i Waters 11d the Said, tank is preferably inde` 3. Be it known that l, MARC Bramer, engipendent of the cylinder, so as to avoid any neer, citizen of the Republic of Switzerjoint between the jacket and the cylinder,

land, j remding at Bois-Colombes,-' v Seine, through which the water might leak.v e0 i rance, have invented certain new and usej e jacket b thus constructed is mounted ful Improvements in Cylinders, Particuso that its faces 6 reston the head a0 of the larly for Explosion-Engines, of which the cylinder a. In order to secure these two .following is a specification. e j parts together, the jacket b is built so that rlhis invention relates to cylinders, `pare 1t 1s a t over the cylinder a and is secured c5 1o ticularly for explosionengines and has for to the said cylinder by means of pins g as its object to make cylinders lighter .but as shown 1n Figs. l and. 2 of the drawing; in strong as thoseof the same power hitherto which case the said cylinder is provided designed. h j' with a shoulder g; or the jacket b is drawn The invention consists in providing cylover the cylinder a', and there is provided a 70 l5 inders with a separate jacket which is made screw thread alo on the cylinder on which is o that it rests on the coverof the cylinder screwed a corresponding thread provided in and surrounds the said cylinder, to which it the jacket b, as shown in Fig. 3. is secured along the whole or part ofits he screw thread c11; is cut in the whole s length. This jacket, While forminga tank or part ofthe length of the-jacket, and it v'15 .y 2o for the cooling liquid,v contains the valve isshown screwed throughout in Fig. 4, this 2 gear and'other accessory parts without their arrangement having the advantage of inil eingexposed to the pressure obtaining in creasing the surface of conductivity and conl the c linder. vf. Thvinvention further comprises certain screw threads increase the cooling surface; 80 il arrangemen, more fully `relferred to here- 1n the latter cases, the valve holes in the cylimi-ten r' V inder are preferably drilled after the jacket In the accompanyingdrawing given by is put in place. way of example, In the two parts, at the point where the Figure l shows in vertical axial section said sparking plug is to be mounted and at 85 3o an explosion engine cylinder;

Figs. 2 to 4l show respectively,v also in axial hole, the large base of which faces outward;

.j vertical section, a secondsthirdand fourthl the said hole, the surface of which is partly modified. construction o'f explosionl engine constituted by `the metal of the cylinder, cylinders; and partly by the metal of theA casing -or 90 Figs. 5 to 8 show constructional details. jacket, is ground, and in the cone thus ccording to this invention there is made ground, is mounted a part intended to rein the known manner a cylinder-a of. steel ceive the sparking plug, for 4instance by or any other strong metal, with a head a means of a screw thread, as shown in Fig. 5. in one-piece, and either in the cylinder head A tight joint is thus insured by thethorough 95 4o al? or in the walls ofthe cylinderz'a, are procontact of the socket, avoiding, in the pordition to its light weight, hasthe advantage the plug by conductivity.

of being of great conductivity. The jacket In a modified form a conical hole is also rests with one of its faces 6 on the head a formed and subsequently ground, but this vof the cylinder a, and surrounds the cylhole is only provided in the wall of thecylinder on the whole or a portion of its length. inder a, while in the jacket is drilled a 105 t@ The jacket comprises two conduits c termicylindrical hole 51 of a diameterat least nating respectively at the seats of the sucequal to the largest diameter of the conical tion and discharge valves a?, and two bosses hole made in the cylinder a, and subsee which form respectively guides for the quently tapped, the said cylindrical hole spindles do of the suction and exhaust valves. being made so that, as soon as the jacket. b 1-10 55 The jacket b constitutes a tank f suitable is putin placeA on the cylinder c, its' axis cov for receiving the cooling liquid, for instance' incides with the axis of the conical hole'.4

Into the tapped hole b is screwed a part h adapted toreceive the plug and comprising a tapering part which engages with the conical hole as shown in/ Fig. 6 of the drawing. In this case the tight joint is insuredby the thorough contact of the taper'- ing portion of the part h with the walls of the conical hole provided in the wall of the cylinder, and the cooling of the plug is'insured by contact of the screw threads.

In another modified form the jacket b is provided with a plain hole followed by a tapped hole of the same diameter which is made in --the wall of the cylinder a, and a part L intended to receive the sparking plug is then made so as to enable it to be drawn into the hole of the jacket, and screwed with its screw threaded end into the tapped porhave been described, but com ,on the same date and may. be-provided with ribs c tion of the cylinder a. This part h has a shoulder h1 which, when the part is in place, exercises a pressure on the inner wall of the jacket against the cylinder, as shown in Fig. 7 of the drawing. In this case, a tight joint is insured by the thorough contact between the wall of the casing and the cylinder.

According to another modification the cylindrical hole is tapped throughout so that the part h adapted to receive the plug, is screwed simultaneously into the` jacket b and into the cylinder a, a packing h", for instance of red lead, insuring altight joint with the screw thread, as shown in Fig. 8 of the drawing.

For the preparation of the conduits for the circulation pf water in the jacket, is used a process consisting in enameling the walls in accordance with a patent application filed by the same applicant.

Obviously the invention is not limited to those methods of carrying it out, which rises on the contrary, any modification wit in the scope of the claims. The engine mayhave a different kind of distributing mechanism from a valve gear, while the outer surface of the cylinders, which is not covered by the jacket,

' adapted to increase the cooling surfaces.

1. In an internal combustion engine, the combination of a cylinder comprising a head and sidewalls formed as a unit and adapted to sustain within it the force of the eXplosions, the upper portion of the cylinder and head being of uniform ing a recess of uniform cross-section to removably receiveand closely fit the upper portion having a j cross-section, ajacket y' ormedseparately from the cylinder and havof said cylinder and its head, said jacket forming a unit having a space for the cooling liquid which space is inclosed by the jacket independently of the walls of the cylinder, and controlling valves for the cylinder carried by said jacket.

2. In an internal combustion engine, the combination of a cylinder having a head and side walls of regular uni orm cross-section, the cylinder and its head being adapted Ato sustain within it the force of the explosions, and a water jacket having a water space inclosed by the walls of the jacket, said jacket having a recess of regular uniform crosssection to removably receive and closely it the head and side walls of the cylinder.4

3. In an internal combustion engine, the combination of a cylinder having a head and side walls of uniform cross-section, and a water jacket composed of aluminum and recess of uniform cross-section to removably receive and closely fit the head and side walls of the cylinder.

4:. In an internal combustion engine, the combination of a cylinder comprising. a head and side walls, the upper portion of the cylinder and headbeing of regular uniform cross-section, the cylinder and its head being adapted to sustain within it the force of the explosions, a liquid coolingjacket formed separately from the cylinder and having a recess of regular uniform cross-section to closely and removably iit upon the head and side walls thereof, the cylinder having valve seats C"and controlling valves cooperative with the vseats of the cylinder and carried and guided by said jacket.

5. In an internal combustion engine. the combination of a cylinder embodying a head and side walls, and a jacket for cooling liquid, said jacket having a vcylindrical recess threaded onto the cylinder.

6. In an internal combustion engine, the

side walls of the cylinder, the jacket also having valve-guiding and supporting means carried thereby.

In testimony whereor` I have hereunto set my hand in presence of two subscribing wit- IleSSeS.

MARC BIRKIGT.

Witnesses:

G. INGENAULL, MATEO J. SRAN. 

